Circular cutting blade



FIG. 1 is a front elevational view of the circular cutting blade showing our new design;

FIG. 2 is a top side elevational view thereof;

FIG. 3 is a bottom side elevational view thereof;

FIG. 4 is a right side elevational thereof, the left side being a mirror image thereof;

FIG. 5 is a rear elevational view of the circular cutting blade shown in FIG. 1; and,

FIG. 6 is a cross-sectional view thereof, taken in the direction of line 6--6 of FIG. 1.

The broken line illustration of the central aperture is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a circular cutting blade, as shown and described. 